ALE Godunov법을 이용한 1차원 압축성 이상유동 해석
Compressible Two-Phase Flow Computations Using One-Dimensional ALE Godunov Method
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Abstract
Compressible two-phase flow is analyzed based on the arbitrary Lagrangian-Eulerian (ALE) formulation. For water, Tamman type stiffened equation of state is used. Numerical fluxes are calculated using the ALE two-phase Godunov scheme which assumes only that the speed of sound and pressure can be provided whenever density and internal energy are given. Effects of the approximations of a material interface speed are investigated. A method is suggested to assign a rigid body boundary condition effectively. To validate the developed code, several well-known problems are calculated and the results are compared with analytic or other numerical solutions including a single material Sod shock tube problem and a gas/water shock tube problem. The code is applied to analyze the refraction and transmission of shock waves which are impacting on a water-gas interface from gas or water medium.
참고문헌 (9)
- "“함정의 수중폭발 충격시험을 위한 계측장비 시스템 개발", 40(4), pp.66~74 (2003)
- "“동압 계수의 불연속성을 이용한 내면파의 수치해석", 41(4), pp.17~29 (2004)
- "“캐비테이션을고려한 부유구조물의 3차원 수중폭발 충격응답 해석", 40(6), pp.1~11 (2003)
- "“A comparative study of computational methods in cosmic gas dynamics", pp.76~84 (1982)
- "“Geometric conservation laws for flow problems with moving boundaries and deformable meshes and their impact on aeroelastic computations ”", 134, pp.71~90 (1996)
- "“On the computation of multi-material flows using ALE formulation ”", 194, pp.304~328 (2004)
- "“Internal wave computations using the ghost fluid method on unstructured grids ”", 47, pp.233~251 (2005)
- "“An efficient shock-capturing algorithm for compressible multicomponent problems ”", 142, pp.208~242 (1998)
- "AUSM(ALE): A Geometrically Conservative Arbitrary Lagrangian-Eulerian Flux Splitting Scheme", 150, pp.268~286 (1999)